Home / 728,999.80-1,093,499.70-445,564.60

Finding the Fourth Proportional to 728,999.80, 1,093,499.70 and 445,564.60

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Solution

The fourth proportional to 728,999.80, 1,093,499.70 and 445,564.60 is: 668,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,999.80 : 1,093,499.70 = 445,564.60 : x
  2. Step 2: Convert to fraction form
    728,999.80/1,093,499.70 = 445,564.60/x
  3. Step 3: Cross multiply
    728,999.80x = 1,093,499.70 × 445,564.60
  4. Step 4: Simplify right side
    728,999.80x = 487,224,756,430.62
  5. Step 5: Solve for x
    x = 487,224,756,430.62/728,999.80
  6. Step 6: Final answer
    x = 668,346.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.